I have the same Problem like in https://community.teltonika-networks.com/16900/rut955-and-openvpn-error-tls-handshake-failed
right now, but there no solution was provided so I opened a new ticket. I have a RUT955 with firmware version RUT9_R_00.07.00.2.
Iam trying to establish an openVPN connection, where Rut955 is the server.
I followed this manual https://wiki.ubuntuusers.de/OpenVPN/
to create certificates and keys for my ubuntu client and the server. (I tried before to generate the certificates via the router and use these but with no success as well)
I uploaded the ca cert, the server key and server cert and the diffi Hellman key to the router.
I created a ovpn file for my client and tried to connect to VPN but it failes with an TLS error.
sudo openvpn --config ~/client-configs/MAP1.ovpn
Thu Nov 18 07:16:51 2021 OpenVPN 2.4.7 x86_64-pc-linux-gnu [SSL (OpenSSL)] [LZO] [LZ4] [EPOLL] [PKCS11] [MH/PKTINFO] [AEAD] built on Jul 19 2021
Thu Nov 18 07:16:51 2021 library versions: OpenSSL 1.1.1f 31 Mar 2020, LZO 2.10
Thu Nov 18 07:16:51 2021 NOTE: the current --script-security setting may allow this configuration to call user-defined scripts
Thu Nov 18 07:16:51 2021 TCP/UDP: Preserving recently used remote address: [AF_INET]192.168.1.1:1194
Thu Nov 18 07:16:51 2021 Socket Buffers: R=[262144->262144] S=[262144->262144]
Thu Nov 18 07:16:51 2021 UDP link local: (not bound)
Thu Nov 18 07:16:51 2021 UDP link remote: [AF_INET]192.168.1.1:1194
Thu Nov 18 07:16:51 2021 NOTE: UID/GID downgrade will be delayed because of --client, --pull, or --up-delay
Thu Nov 18 07:17:51 2021 TLS Error: TLS key negotiation failed to occur within 60 seconds (check your network connectivity)
Thu Nov 18 07:17:51 2021 TLS Error: TLS handshake failed
Thu Nov 18 07:17:51 2021 SIGUSR1[soft,tls-error] received, process restarting
Thu Nov 18 07:17:51 2021 Restart pause, 5 second(s)
I added the troubleshoot files.
Can someone help me please?